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@ 2013-10-25T08:11:19Z

<?php
    function square($val)
    {
        return pow($val, 2);
    }

    $arr = array(
        1, 2, 3, 4
    );

    $squares = array_map('square', $arr); 

    $i = 0;
    foreach ($squares as $value) {
        if ($i++ > 0) {
            echo ".";
        }

        echo $value;
    }
?>

Output
Performance
VLD
References
Branches

array_map: documentation ( source)
pow: documentation ( source)

preferences:dark modelive preview

53.28 ms | 402 KiB | 5 Q